/* Nissi Advisor SpA — hoja de estilos principal
   Tokens de color/tipografía/spacing tomados de DESIGN.md */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #eef1f6;
  --color-primary: #0b2545;
  --color-primary-light: #13315c;
  --color-primary-dark: #001026;
  --color-accent: #c9a227;
  --color-accent-light: #fed255;
  --color-text: #191c1d;
  --color-text-muted: #44474e;
  --color-border: #e9ecef;
  --radius: 0.5rem;
  --radius-card: 0.75rem;
  --max-width: 1280px;
  --shadow-sm: 0px 4px 12px rgba(11, 37, 69, 0.05);
  --shadow-md: 0px 8px 24px rgba(11, 37, 69, 0.08);
  --transition: 0.2s ease;
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-wrap: break-word;
}

img, svg {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.brand small {
  font-weight: 500;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle svg {
  width: 26px;
  height: 26px;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.01em;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.nav-cta {
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  padding: 10px 20px !important;
  border-radius: var(--radius);
  border-bottom: none !important;
  font-weight: 700;
}

.nav-cta:hover {
  background: var(--color-accent-light);
  color: var(--color-primary-dark) !important;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background:
    radial-gradient(ellipse 800px 500px at 85% -10%, rgba(201, 162, 39, 0.18), transparent),
    linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: 96px 24px;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-hero {
  position: relative;
  background:
    radial-gradient(ellipse 800px 500px at 85% -10%, rgba(201, 162, 39, 0.18), transparent),
    linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: 72px 24px;
  text-align: center;
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 70%);
  pointer-events: none;
}

.page-hero h1 {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.eyebrow {
  display: inline-block;
  color: var(--color-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 20px;
  max-width: 720px;
}

.hero p {
  font-size: 1.125rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin: 0 0 32px;
}

.hero-tagline {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent-light);
  max-width: 560px;
  margin: -8px 0 28px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--color-accent-light);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: #fff !important;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: rgba(11, 37, 69, 0.06);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Sections ---------- */

section {
  padding: 72px 24px;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--color-primary);
}

.section-header p {
  color: var(--color-text-muted);
  margin: 0;
}

.grid-3 {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card h3 {
  margin: 0 0 10px;
  color: var(--color-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.card p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 1rem;
}

.text-block {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.text-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.text-block h2 {
  position: relative;
  color: var(--color-primary);
  font-size: clamp(1.75rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  padding-bottom: 16px;
}

.text-block h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  border-radius: 999px;
  background: var(--color-accent);
}

.text-block p {
  color: var(--color-text-muted);
  margin: 0 0 16px;
}

.text-block .btn {
  margin-top: 8px;
}

.text-block .emphasis {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Variante oscura, para romper el ritmo entre tanta sección clara */

.section-dark {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
}

.section-dark .text-block h2 {
  color: #fff;
}

.section-dark .text-block p {
  color: rgba(255, 255, 255, 0.75);
}

.section-dark .text-icon {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-accent-light);
  box-shadow: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.grid-4 {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pair-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.pair-grid > div {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
}

.pair-grid h3 {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin: 0 0 10px;
}

.pair-grid p {
  color: var(--color-text-muted);
  margin: 0;
}

.flow-steps {
  max-width: var(--max-width);
  margin: 32px auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.flow-steps .step {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.95rem;
  box-shadow: var(--shadow-sm);
}

.flow-steps .arrow {
  color: var(--color-accent);
  font-weight: 700;
}

.quote-stack {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.quote-stack p {
  color: var(--color-text-muted);
  margin: 0 0 6px;
  font-size: 1.1rem;
}

.quote-stack p.closing {
  color: var(--color-primary);
  font-weight: 700;
  margin-top: 18px;
  font-size: 1.2rem;
}

/* CTA banner */

.cta-banner {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: 64px 24px;
}

.cta-banner h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 520px;
  margin: 0 auto 28px;
}

/* ---------- Contact page ---------- */

.contact-single {
  max-width: 640px;
  margin: 0 auto;
}

.contact-info-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-info-list .icon {
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-list strong {
  display: block;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.contact-info-list span {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* ---------- Scroll reveal ---------- */
/* Oculto solo si hay JS (clase .js en <html>); sin JS, todo queda visible siempre. */

.reveal {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
}

html.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html.js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 56px 24px 24px;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-grid h4 {
  color: #fff;
  font-size: 0.95rem;
  margin: 0 0 16px;
}

.footer-grid p {
  font-size: 0.88rem;
  margin: 0 0 6px;
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-grid a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.88rem;
}

.footer-grid a:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.55);
}

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .grid-3,
  .grid-4,
  .pair-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px 24px 20px;
    border-bottom: 1px solid var(--color-border);
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    padding: 12px 0;
  }

  .nav-cta {
    text-align: center;
  }
}